<!DOCTYPE html>
<html>
<body>
  <span contenteditable>sakde</span> kreid <span contenteditable>slodv</span>
  <script>
    // Adding focus to the textbox should trigger a spellcheck
    document.querySelector("span").focus();
    document.querySelector("span + span").focus();
    document.querySelector("span + span").blur();
  </script>
</body>
</html>
